Improved base for bench-vises



UNITED STATES PATENT OFFICE.

ANSON P. STEPHENS, OF BROOKLYN, NEW YORK, ASSIGNOR TO HIMSELF, AND MELVIN STEPHENS AND NATHAN STEPHENS, BOTH OF SAME PLAGE.

IMPROVED BASE FOR BENCH-VISES.

Specification forming part of Letters Patent No. 96,282, dated October 26, 1869.

yTo all whom 'it may concern:

Be it known that I, ANsoN P. STEPHENS, of Brooklyn, in the county of Kings and State of New York, have invented and made a new and usef'ul Improved Base for Bench-Vises; and I do hereby declare the following to be a i'ull, clear, and exact description of the said invention, reference being had to the annexed drawings, making part of this specication, wherein- Figure lis a vertical section of said base with a vise thereon, and Fig. 2 is an inverted plan of the said base.

Similar parts are referred to by like letters.

Heretofore bench-vises have been made with a turn-table base, upon which the .vise may be swung around into the most convenient position for the workman. These turn-tables have usually been made of two flat disks, or else with a rib on one and a groove on the other, the same being circular. In the turn-tables of this character considerable trouble is experienced in turning up the grooves and ribs so as to fit each other. It has to be done by accurate measurement, or else to'a pattern. This is too costly for the rough and cheap base of vises, and it is seldom that the rib and groove fit cach other. Another difficulty arises inthe use of these bases. The chips, filings, and dirt work in between the flat portions of the turn-table and prevent the parts taking a correct bearing upon each other, and the strain laterally in using the vise is thrown upon the clamping-screw.

The nature of my said invention consists in a conical base to be secured to the bench, in combination with a turn-table base to be secured to the vise, and having a conical liange to set over the conical edge of the base, the two being connected by a clamping-screw. By this construction there are no flat surfaces to come together, and chips, filings, or dirt cannotlodge upon the surfaces that come together.

The turning and finishing of the said surfaces are effected with great facility, being simply at a given angle to produce the conical shape,

and when the parts are set together they form a strong, steady, and reliable base for the vise, and one thatV cannot become obstructed or clogged by filings, chips, grease, or similar materials that are frequently found around bench-vises.

In the drawings, a is a circular base, with an inclined or conical edge, 2. Said base is screwed upon the bench shown at b.

c is the turn-table base that is to receive upon its upper surface the bench-vise, the parts be -ing connected by screws in any convenient manner. The vise is shown at d. Around the base c is a pendent iiange, e, that is circular, with an inclined or conical interior surface that sets upon the surface 2, the plates or fiat portions of the bases a and c not touching each other.

The clamping-screwfs to pass up through a hole lin the bench, through the center of the base a, and screw into the turn-table c. The

lcollar 4 on the screw f, taking against the under side of the base c, causes the conical surfaces to be drawn together, so as to hold the vise tirmlyin place when the screw f is screwed up.

What I claim, and desire to secure by Letters Patent, is

The base a, with a conical edge, in combination with the turn-table c, that is attached 

